predictive intelligence with google now complete. introducing droid dna by htc. it's not an upgrade to your phone. it's an upgrade to yourself. >>> we're back with tonight's "outer circle" where we reach out to our sources from all over the world. to seoul where they are getting ready to react to an expected missile launch by north korea this month. paula hancocks is following this story. i asked her what more we know about north korea's plans. >> tom, as north korearies. to launch its second rocket this year, as early as monday, the u.s. is making preparations of its own. the navy is moving two guided missile destroyers to the region, although they're not saying exactly where. pyongyang says they are trying to send a working satellite into orbit. but the u.s. and other countries simply don't believe that. they believe that this is a cover for testing the long-range missile technology, which is banned by the united nations. one senior government official here in seoul tells me that a motivation behind this rocket launch may also be domestic instability. the sourc